Ever step out the door feeling like your perfectly-curated ensemble makes you look like one in a million, only to pass a girl down the street wearing practically the exact same thing? It happens to stars, too. This week, those matchy-matchy celebs were wearing keyhole necklines, different versions of the same Valentino look and turquoise dresses with lacy sleeves. Take a look at these celebrity double-takes and weigh in on which celeb you think owned the look.

Trend #1: Keyhole Necklines

Photos: FayesVision/WENN.com

There was more than one keyhole neckline coming down the red carpet at the Critic’s Choice Awards this week. Vampire Diaries actress Nina Dobrev sparkled in a turquoise-spangled cocktail-length dress with a tulip skirt by Monique Lhuillier. The skin-baring cut-out lent some sex appeal to the fun frock, and Dobrev wisely kept her accessories to a minimum and wore a sleek ponytail to offset the dress’ glitz-factor. Dobrev’s neckline seemed creative until Jennifer Lawrence arrived, wearing a black Prabal Gurung gown with a belt and sheer train. The Silver Linings Playbook award winner's neckline was in a contrasting leather which added an edge to the otherwise classic sweetheart cut. Red nails, a silver clutch and a sideswept updo completed her look.

Trend #2: Colorblock Valentino

Photos: Imeg Akpanudosen/Getty Images, Kyle Blair/WENN.com

Mariah Carey premiered this season of American Idol in a black Valentino column gown with a colorblocked white bow detail at the bust. Her glamorous vintage-inspired look was emphasized with a high ponytail and dripping diamond earrings. This dress might look familiar to you—and not just because Jennifer Aniston wore it last year. Lena Dunham wore a jumpsuit version to the premiere of HBO’s Girls. The strapless tuxedo-like look features the bow reversed to the back, which showcased Dunham’s many tattoos.

Trends #3: Lace Sleeves and Pleats

Photos: Brian To/WENN.com, Steve Granitz/Getty Images

Amanda Seyfried’s dress at the Critic’s Choice Awards featured so many unique details that it seemed one-of-a-kind—until Octavia Spencer turned up in a very similar look. The matching lace cap sleeves and pleated skirt might make you think that these blue dresses come from the same collection, but Seyfried’s gown is by Marios Schwab while Spencer’s is by Tadashi Shoji. Do you love the kohl-rimmed eyes, topknot and sandals that Seyfried wore with hers, or prefer Spencer’s coordinated earrings, clutch and blunt bangs?

Ellen Freeman has been contributing to the Fashion Spot since 2010. Since graduating with a degree in comparative literature from Haverford College, her celebrity fashion, wellness, arts and travel writing has appeared in publications including the Matador Network and Philadelphia Weekly. Also a certified yoga instructor, Ellen currently lives in the Japanese countryside—but misses thrift store spelunking in her hometown of Portland, Oregon.